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Finite element analysis for damage monitoring of glass fiber epoxy composites via the piezoelectric method

机译:压电法监测玻璃纤维环氧复合材料损伤的有限元分析

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摘要

This study conducted a finite element analysis of the piezoelectric damage monitoring of unidirectional glass fiber epoxy composites to estimate the electric charge signals from the composite materials against the external load or the internal crack length. To verify the results of the finite element analysis, the calculated electric charges were compared with the results of a previous research. In addition, the crack length during Mode I fatigue tests of the DCB specimen was estimated and compared with the measured data. The estimated electric charge signals from the finite element analyses showed tendency similar to that of the measured ones, and could predict the crack propagation.
机译:这项研究对单向玻璃纤维环氧复合材料的压电损伤监测进行了有限元分析,以估计复合材料相对于外部载荷或内部裂纹长度的电荷信号。为了验证有限元分析的结果,将计算出的电荷与以前的研究结果进行了比较。此外,估计了DCB试样在I型疲劳试验过程中的裂纹长度,并将其与测量数据进行了比较。有限元分析估计的电荷信号显示出与实测趋势相似的趋势,并且可以预测裂纹扩展。

著录项

  • 来源
    《Composite Structures》 |2014年第8期|69-74|共6页
  • 作者

    S.K. Hwang; H.Y. Hwang;

  • 作者单位

    Department of Mechanical Design Engineering, Andong National University, 1375, Gyeongdong-ro, Andong-si, Gyeongsangbuk-do 760-749, Republic of Korea;

    Department of Mechanical Design Engineering, Andong National University, 1375, Gyeongdong-ro, Andong-si, Gyeongsangbuk-do 760-749, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Finite element analysis; Piezoelectric method; Damage monitoring; Glass fiber epoxy composites;

    机译:有限元分析;压电法;损害监测;玻璃纤维环氧复合材料;

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